Introduction to Roots and Radicals

Introduction to Roots and Radicals - Note that the square...

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Introduction to Roots and Radicals Note: This subject is introduced in the pre-algebra section (see Chapter ).  The symbol  is called a  radical sign  and is used to designate  square root.  To designate  cube  root,  a small three is placed above the radical sign,  . When two radical signs are next to each  other, they automatically mean that the two are multiplied. The multiplication sign may be omitted. 
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Unformatted text preview: Note that the square root of a negative number is not possible within the real number system; a completely different system of imaginary numbers is used. The (so-called) imaginary numbers are multiples of the imaginary unit i ....
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